A marine collagen drink in sachets against a bovine collagen powder. We compared dose, price per gram, ingredients and convenience.
Nutrition Geeks
Collagen Glow Up Powder
A+9.7/10
57p/serving
Absolute Collagen
Marine Collagen
B-7.2/10
£2.43/serving
Nutrition Geeks wins 3 of 5 rounds, Absolute Collagen wins 1, 1 tied
Absolute Collagen is a well-known brand and the ready-to-drink sachets are handy. But Nutrition Geeks gives you 14g of collagen per serving against 8g, with nothing else added, and it costs 4.0p per gram of collagen against about 30p. Pick Absolute Collagen only if you want a drink you can take on the go and don't mind paying for it.
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Or shop Absolute CollagenCollagen is the most abundant protein in the body, making up around a third of its total protein. It's the main structural protein in skin, bones, tendons and cartilage, and the body's own production slows as we get older.
Collagen supplements are made from hydrolysed collagen peptides: collagen broken down into small chains of amino acids such as glycine, proline and hydroxyproline so it dissolves easily in a drink. Most people take them as part of a daily routine alongside a balanced diet.
Four things separate a good collagen supplement from an expensive one.
Most published studies use 2.5g to 15g of collagen peptides a day. Check how many grams of collagen you get per serving, not per pack. Capsules often contain under 1g each, so you'd need a handful a day to match one scoop of powder.
"Hydrolysed" means the collagen has been broken down into peptides that dissolve easily. Type I and Type III are the main types found in skin. Bovine collagen provides both, and marine collagen is mainly Type I.
The best powders list one ingredient: collagen peptides. Sweeteners, flavourings and sugars add cost and make the powder harder to use in savoury food or coffee. Better filtering also means less smell and taste.
A cheap tub with small servings can cost more per day than a bigger one. Divide the price by the number of full servings. Across our top five, the price ranged from 57p to £2.43 per serving.
In Great Britain, supplements can only make health claims that are on the government's approved register. Collagen itself has no approved claims, so be wary of any brand that promises to remove wrinkles or fix joint pain. Here's what can be said:
The key details from each brand's own label and website.
| Detail | Nutrition Geeks | Absolute Collagen |
|---|---|---|
| Collagen per serving | 14g | 8g |
| Price per serving | 57p | £2.43 |
| Price per gram of collagen | 4.0p | About 30p |
| Format | Unflavoured powder | Liquid sachets |
| Collagen type | Type I & III, bovine | Type I, marine |
| Added sweeteners or flavourings | None | Yes |
| Supply per pack | 30 days | 14 days |
| Made in the UK | Yes | Yes |
| Delivery | Free, next day | Free |
| Subscribe & save | 10% off | 18% off |
Green marks the better result in each row. Prices and details checked 29 October 2026 on each brand's own website.
Most published studies on collagen peptides use 2.5g to 15g a day. A scoop of Nutrition Geeks gives you 14g, near the top of that range. An Absolute Collagen sachet gives you 8g.
Nutrition Geeks is 57p for 14g. Absolute Collagen is £2.43 a sachet at its one-off price, so each gram of collagen costs over seven times as much.
Nutrition Geeks lists one ingredient: hydrolysed bovine collagen peptides. The Absolute Collagen drink adds flavouring and sweeteners to make it pleasant to drink neat.
Both brands deliver free in the UK, so there's no extra cost either way.
A sachet needs no mixing, which is handy at work or when you travel. With a powder you add a scoop to a drink, which takes seconds but needs a cup.
For most people, Nutrition Geeks. It gives you 14g of collagen per serving against 8g, has no sweeteners or flavourings, and costs 57p a serving against £2.43. Absolute Collagen is better only if you want a ready-to-drink sachet.
Both are mainly Type I collagen, and bovine collagen also contains Type III. Bovine collagen is usually cheaper per gram. Marine collagen suits pescatarians. Neither is suitable for vegans.
A 30-day pouch of Nutrition Geeks is £16.99. Absolute Collagen's 14-day supply is £33.99 at its one-off price, so a month costs about £68 before subscription discounts.
Yes. Many people keep a small tub or a few scoops in a bag and add it to a coffee or a bottle of water. It dissolves in hot and cold drinks.
Rebecca researches and writes our supplement comparisons. For each guide she reads the product labels, checks list prices and delivery terms, reads verified customer reviews, and checks health wording against the GB register of approved claims.
Nutrition Geeks Collagen Glow Up gives you 14g of triple-filtered, grass-fed bovine collagen per serving, with nothing else added. At 57p a serving with free next day delivery, it beat Absolute Collagen on dose, price per gram and ingredients.
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